.guide-x {
    text-align: center;
    padding: 100px 16px;
    background-color: #fff;
    position: relative;
    overflow: hidden;
}
.guide-overlay {
    position: absolute;
    left: 0; top: 0; right: 0; bottom: 0;
    background: linear-gradient(transparent, transparent);
}
.guide-overlay-shape {
    width: 100px; height: 60px;
    position: absolute;
    left: 0; top: 0; right: 0; bottom: 0;
    margin: auto;
    border-radius: 50%;
    box-shadow: 0 0 0 9999px rgba(0,0,0,.75);
}